Home / 123,318.68-170,180.22-66,730.05

Finding the Fourth Proportional to 123,318.68, 170,180.22 and 66,730.05

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Solution

The fourth proportional to 123,318.68, 170,180.22 and 66,730.05 is: 92,087.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,318.68 : 170,180.22 = 66,730.05 : x
  2. Step 2: Convert to fraction form
    123,318.68/170,180.22 = 66,730.05/x
  3. Step 3: Cross multiply
    123,318.68x = 170,180.22 × 66,730.05
  4. Step 4: Simplify right side
    123,318.68x = 11,356,134,589.61
  5. Step 5: Solve for x
    x = 11,356,134,589.61/123,318.68
  6. Step 6: Final answer
    x = 92,087.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.